Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board
An I2C temperature and humidity sensor based on HTU21D-F.
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It's summer and you're sweating and your hair is all frizzy and all you really want to know is why the meteorologist said this morning that today's relative humidity would reach a perfectly reasonable maximum of 52% while it's rather 77%. With this temperature and humidity sensor HTU21D-F is the best way to prove the meteorologist wrong!
This I2C digital humidity sensor is a precise and intelligent alternative to the much simpler humidity and temperature sensor - SHT15 Breakout It has a typical accuracy of ±2% with an operating range that is optimized from 5% to 95% RH. Operation outside this range is always possible - just the accuracy may drop a little. The temperature output has an accuracy of ±1°C of -30~90°C. If you are looking to measure temperature more accurately, we recommend the high-precision I2C temperature sensor expansion card MCP9808.
Such a beautiful chip - that's why we developed a breakout card that includes the Filtered version (the white plastic piece that is a PTFE filter to keep the sensor clean), a 3.3V regulator and an I2C level shift circuit. This allows you to use it safely with any type of microcontroller with 3.3V-5V or logic power supply. Each order comes with a fully assembled and tested printed circuit board and connector. You will have to solder the connector to the PCB but it is quite easy and takes only a few minutes even for a beginner.
Dimensions: 18mm x 16mm x 16mm x 2mm / 0.7" x 0.6" x 0.6" x 0.08" x 0.08
I2C address 7 bits 0x40
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